The ? is 1.
7*(9*1)=63
Hope this helps!!
Becouse k and n are 'neighbours' so their sum are 180
so k=180-42=138
Answer:
6x^2-10x-4
Step-by-step explanation:
=(3x+1)(2x-4)
=6x^2-12x+2x-4
=6x^2-10x-4
Answer:
A. Definition of linear pair
Step-by-step explanation:
A linear pair of angles is formed when two lines intersect. Since angle on a straight line = 180°, angles of a linear pair sum up to 180°.
angles 1 and 4, angles 2 and 5, angles 3 and 6 are all linear pairs. Each pair = 180°.
